table {
    width: 50%;
    margin-top: 20px;
    border: 1px solid #ddd;
}

th {
    background-color: #dfeefd;
}

th,
td {
    padding: 8px;
    text-align: left;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

.add-button {
    margin-top: 20px;
}